Portable resistance training device



FIG. 1 is an isometric view for a portable resistance training device, as shown and described;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view with a right side view being the mirror image thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a portable resistance training device. 